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The document explains what healthy skin, nails, and hair look like on an ultrasound.

In this randomized, placebo-controlled study, Titagen® was found to improve skin, hair, and nail health in adults consuming 5g daily, and reduce pain and improve quality of life for osteoarthritis patients taking 10g daily, without related adverse events.

This study highlights the use of hair and fingernail cortisol levels as retrospective indicators of chronic stress, particularly in minoritized populations facing social stressors that increase the risk of mental health issues.

This research highlights the key interactions of hair cosmeceuticals, focusing on their effects on the hair fiber surface, cuticle, and cortex, which are crucial for protection and mechanical strength, particularly in damaged hair.

This report describes a rare case of hair and nail ectodermal dysplasia in a 3-year-old girl, where treatment with topical minoxidil resulted in minimal improvement after 12 months.

Minoxidil increases nail growth more than biotin.

Minoxidil may improve nail growth and appearance.

This report describes a case of Cronkhite-Canada syndrome diagnosed in a 54-year-old man with symptoms including gastrointestinal polyps, alopecia, skin hyperpigmentation, and severe diarrhea, who experienced significant symptom improvement with azathioprine.

This article discusses hair loss conditions and treatments, including the use of finasteride in male androgenetic alopecia and its variable results in women, without presenting new clinical findings.

This article discusses various hair and nail abnormalities linked to paraneoplastic conditions and cancer treatments, emphasizing their potential role in diagnosing and managing internal malignancies and reports no new clinical findings.

Men with a certain type of hair loss often use facial moisturizers, and a specific antibiotic treatment may help another hair condition.

This study found that histomorphological evaluation of nail punch biopsies is useful for diagnosing various nail-related dermatoses, with psoriasis being the most common condition observed.

This review by the British Hair and Nail Society reported that their national grand round for complex hair disorders has led to diagnosis changes in 38% of cases and has suggested novel treatments, emphasizing its role in aiding complex diagnostic and therapeutic decisions.

This study found that applying 5% topical minoxidil twice daily significantly increased nail growth rate in healthy participants compared to untreated nails, with effects observable from the first week.

This study found that a combination of cantigi and henna leaf extracts, in a 1:2 ratio, demonstrated the strongest antioxidant activity with an IC50 value of 29.85 µg/mL.

In this study, a water-soluble nail strengthener containing Pistacia lentiscus and hyaluronic acid significantly improved the appearance and firmness of brittle nails in both in vitro and clinical settings.

Alopecia areata significantly harms women's self-image, causing reduced confidence and social isolation.

This review critiques the unwarranted promotion of biotin for hair and nail improvements, noting the lack of evidence for routine use and highlighting concerning trends in consumer and physician practices.

This study shows for the first time that onychomatricoma can recapitulate the entire nail unit with differentiation toward the nail bed and isthmus, identifying new histopathological and immunohistochemical features.

In this study, dermatologists from the Spanish Hair and Nail Disorders Group viewed post-finasteride syndrome as rare and primarily of psychiatric origin, with limited scientific evidence supporting its existence.

In this animal study, applying a combination of inositol-stabilized arginine silicate complex and magnesium biotinate promoted hair growth but not nail growth.

This response article concurs with Dr. Lipner's critique that biotin supplementation is largely unsupported for routine use in dermatological conditions, with evidence mostly limited to case reports.

This study identified nine compounds that activate Wnt signaling, with aminoacridine and proflavine especially promoting hair and nail regeneration in mouse models, highlighting new therapeutic candidates from existing FDA-approved and natural compounds.

In this clinical study, a vegan collagen builder (VEGCOL™️) was shown to safely and effectively improve hair growth, skin smoothness, wrinkle reduction, and joint pain relief in adults, with enhancements varying by dose over a 60-day period.

This review discusses the evidence for biotin supplementation in treating hair loss, concluding that its benefits are poorly supported by data and advising against routine use without more compelling future trials.

This review outlines various dermatologic adverse events associated with targeted therapies and immunotherapies, emphasizing the need for collaboration between dermatologists and oncologists to manage these effects effectively; it reports no new clinical findings.

This review synthesizes recent research on how Wnt signaling regulates skin, hair follicle, and nail regeneration, highlighting its compartment-specific roles and discussing targeted strategies for treating conditions like alopecia, chronic wounds, and skin cancer.

Treatment improved some symptoms but not all.

This review discusses biotin's role in nutrition and suggests no benefit to supplementing it for hair, nails, and skin in healthy individuals; it reports preliminary findings that high dosages may help some multiple sclerosis patients.

This review details various skin manifestations linked to different endocrine disorders but does not report any new clinical results.